body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 0;
    padding: 20px;
    background-color: #f0f0f0;
    color: #333;
}
  
h1 {
    margin-bottom: 20px;
    color: #1a1a1a;
}
  
.gallery {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}
  
.gallery img {
    width: 150px;
    margin: 10px;
    cursor: pointer;
    border-radius: 8px;
    transition: transform 0.2s;
}
  
.gallery img:hover {
    transform: scale(1.1);
}

.popup {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.8);
    justify-content: center;
    align-items: center;
}

.popup img {
    max-width: 90%;
    max-height: 90%;
    border-radius: 10px;
    box-shadow: 0 0 20px #fff;
}

.popup button.close-popup {
    position: absolute;
    top: 20px;
    right: 20px;
    background: #fff;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: 5px;
    padding: 5px 10px;
}

@media (max-width: 768px) {
    h1 {
      font-size: 1.8rem;
    }
  
    .gallery img {
      width: 100px;
      margin: 5px;
    }
}